It depends on your process and the state laws.

You might not owe that much tax because the gain will always be taxed as long term capital gain in the inherited property, and Depending on your tax bracket, you might own 0% tax or max of 20%.You need to ask your aunt what is her basis was and ask if any work was done to house to minimize your gain. 

My engineer charges me between $750 and $1,250 depending on the scope.

@Joey Newton I agree that it depends on the area. 

It's kind of like comparing apples to oranges, each loan is different depending on the terms, what matters is what works best for you.

The actual management of the property does not take up a significant amount of time (depending on the quality of tenant and property- I would suggest both being good to great) but leasing the property does take special skills that are better "contracted out."

If you've owned your home longer than two years and are paying mortgage insurance, it may be a good time to either refi out of mortgage insurance or, depending on the type of loan you have, call your loan servicer and ask that it be removed.

But unfortunately (or fortunately, depends on how you look at it) my old age and wisdom kicked in and going to jail and lossing my family is not worth a rent house.So basically I think we broke every rule of being a land lord possible.

If you're a prospective buyer of a multi-family unit, here's another tip you might find useful when you're kicking the tires on a prospective property.Don't just look at the currently occupancy, check the eviction filings for that property address (it is probably public record at the courthouse - depending on where you're located). 

2) 2% for repairs seem low for a 4-unit. 3) 2% for vacancy seems low as well. 4) i would go 10%-15% overall for a vacancy and repairs budget. dependent on area and tenant base.